SIGABART error - cond="0 != rnti"

[Resting Platypus]

Hi,

For my research I am trying to set the same RNTI value for the UEs in the system. Following is my attempt at doing that.

#include<ns3/lte-module.h>

#include<ns3/applications-module.h>

#include<ns3/internet-module.h>

#include<ns3/point-to-point-helper.h>

#include<ns3/network-module.h>

#include<ns3/core-module.h>

#include<ns3/mobility-module.h>

#include<ns3/buildings-helper.h>

#include<iomanip>

#include<stdio.h>

#include<ios>

//#include "lte-simple-helper.h"

//#include "lte-test-entities.h"

#include "ns3/config-store.h"

using namespace ns3;

NS_LOG_COMPONENT_DEFINE("icn8");

int main (int argc, char *argv[])

{

uint16_t numEnb = 1;

uint16_t numUes = 10;

Time simTime = MilliSeconds (1050);

bool useCa = false;

CommandLine cmd;

cmd.AddValue ("simTime", "Total duration of the simulation", simTime);

cmd.AddValue ("useCa", "Whether to use carrier aggregation.", useCa);

cmd.Parse (argc, argv);

ConfigStore inputConfig;

inputConfig.ConfigureDefaults ();

// Parse again so you can override default values from the command line

cmd.Parse (argc, argv);

if (useCa)

{

Config::SetDefault ("ns3::LteHelper::UseCa", BooleanValue (useCa));

Config::SetDefault ("ns3::LteHelper::NumberOfComponentCarriers", UintegerValue (2));

Config::SetDefault ("ns3::LteHelper::EnbComponentCarrierManager", StringValue ("ns3::RrComponentCarrierManager"));

}

Ptr<LteHelper> lteHelper = CreateObject<LteHelper>();

//eNB and UE nodes

NodeContainer ueNodes;

NodeContainer enbNodes;

ueNodes.Create(numUes);

enbNodes.Create(numEnb);

// Install Mobility Model

MobilityHelper mobility;

mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");

mobility.Install (enbNodes);

BuildingsHelper::Install (enbNodes);

mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");

mobility.Install (ueNodes);

BuildingsHelper::Install (ueNodes);

NetDeviceContainer enbLteDevs = lteHelper->InstallEnbDevice(enbNodes);

NetDeviceContainer ueLteDevs = lteHelper->InstallUeDevice(ueNodes);

lteHelper->Attach(ueLteDevs, enbLteDevs.Get(0));

//Attach a data radio bearer

enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;

EpsBearer bearer(q);

for(uint32_t u = 0; u<ueNodes.GetN(); ++u)

{

Ptr<NetDevice> ueDev = ueNodes.Get(u)->GetDevice(u);

//Ptr<NetDevice> ueDev = ueLteDevs.Get(u);

lteHelper->ActivateDataRadioBearer(ueDev, bearer);

Ptr<LteEnbNetDevice> enbLteDevice = ueDev->GetObject<LteUeNetDevice> ()->GetTargetEnb ();

Ptr<LteUeRrc> ueRrc = ueDev->GetObject<LteUeNetDevice> ()->GetRrc ();

uint16_t rnti = ueRrc->GetRnti();

Ptr<LteEnbRrc> enbRrc = enbLteDevice->GetObject<LteEnbNetDevice>()->GetRrc();

Ptr<UeManager> ueManager = enbRrc->GetUeManager(rnti);

//ueManager->SetAttribute("C-RNTI", UintegerValue(8));

// for(std::map <uint8_t, Ptr<LteDataRadioBearerInfo> >::iterator it = ueManager->m_drbMap.begin (); it != ueManager->m_drbMap.end (); ++it)

// {

// Ptr<LtePdcp> pdcp = it->second->m_pdcp;

// Ptr<LteRlc> rlc = it->second->m_rlc;

// pdcp->SetRnti(11);

// rlc->SetRnti(11);

// }

Ptr<LteDataRadioBearerInfo> bearerInfo = ueManager->GetObject<LteDataRadioBearerInfo>();

Ptr<LtePdcp> pdcp = bearerInfo->GetObject<LtePdcp>();

Ptr<LteRlc> rlc = bearerInfo->GetObject<LteRlc>();

pdcp->SetRnti(11);

rlc->SetRnti(11);

}

lteHelper->EnableTraces ();

Simulator::Stop (simTime);

Simulator::Run ();

Simulator::Destroy ();

return 0;

}

However, after running this I get an error as follows:

assert failed. cond="0 != rnti", file=../src/lte/model/lte-enb-rrc.cc, line=1923

terminate called without an active exception

Could any one please help me in understanding this error and an advice on how to approach this problem?

Thank You.